1.25 Inch 70 Degree FOV 7/14/22mm Eyepiece Flat Field Auto Focus for Telescope

Feature:

1. Metal sensory eight pieces of five groups / six pieces of four groups of optical lenses, flat field design, fmc multilayer coating, large field of view.

2. In addition to the general astronomical telescope can be used, also applies to astronomical telescope interface of large binoculars, the use of astronomical telescopes suitable for binocular head use.

3. Large field of view range of two large, small chromatic aberration, suitable for astronomical stargazing ground viewing.

4. Flat field eyepiece adopts LA lanthanum optical glass, low-speed polishing processing for double glued lenses. Chromatic aberration is smaller, brightness is higher, phase surface is transparent and sharp, aberration is smaller, good image range is bigger, phase surface is flatter.

Field of view: 70 degrees

Focal length: 7mm, 14mm, 22mm

Interface: 1.25 inches

Material: Metal with non-slip rubber

Type: Flat Field/Flush Focus Eyepiece

Specifications:

Model: 7mm parfocal eyepiece

Field of view: 70°

Focal length: 7mm

Coating: Multi-layer coating

Exit pupil distance: 20mm

Eyepiece diameter: 27.5mm

Lens structure: 8 pieces in 5 groups (14mm is 6 pieces in 4 groups)

Model: 14mm parfocal eyepiece

Focal length: 14mm

Exit pupil distance: 19.5mm

Eyepiece diameter: 29.9mm

Lens structure: 14mm is 6 pieces in 4 groups

Model: 22mm parfocal eyepiece

Focal length: 22mm

Exit pupil distance: 19mm

Lens structure: 8 pieces in 5 groups

Packing list:

1pc 70° parfocal eyepiece